Louis van Gaal left Manchester United’s London hotel on Sunday without being told by the club that Jose Mourinho is set to succeed him as manager.
It has been understood that Saturday’s FA Cup final win over Crystal Palace was Van Gaal’s last game in charge.
The 64-year-old has now travelled back to Manchester along with his squad.
However, it is understood neither the Dutchman nor his coaching staff have been told what is happening by United’s executive vice-chairman Ed Woodward.
Van Gaal said “it’s over” when a reporter approached him as he left the hotel on Sunday – but he is said to have been referring to his side’s season rather than his own job.
Other members of Van Gaal’s Old Trafford staff are believed to be unhappy at the lack of communication from the club’s hierarchy.